Presence detector Steinel True Presence KNX Multisensor UP 056353 — ceiling recessed, KNX-compatible

Steinel True Presence KNX Multisensor UP 056353 is a recessed ceiling presence detector designed for KNX building automation systems. The multisensor combines motion and presence detection technologies to identify human presence reliably, enabling automated control of lighting and HVAC in both commercial and residential environments. The unit is built for flush mounting in ceilings and integrates with KNX networks to provide occupancy status and event signals for energy-efficient building control.

Advantages

The multisensor provides precise occupancy detection by combining different sensing principles, which reduces false triggers and improves control accuracy. Integration with KNX ensures compatibility with common building automation platforms and supports centralized configuration and monitoring. The recessed design maintains a low visual profile in ceilings, while the sensor’s tuning options allow adaptation to specific room geometries and use patterns. The device supports automated energy savings by enabling lighting and climate control based on real presence rather than fixed schedules.

Suitable for

• Office spaces and meeting rooms where reliable occupancy detection is required
• Corridors, lobbies and common areas in commercial buildings
• Residential rooms and open-plan living areas integrated with KNX systems
• AV rooms, classrooms and other spaces with variable occupancy patterns

Key specifications

• Mounting: recessed ceiling installation for concealed integration
• Sensing: multisensor combining motion and presence detection principles
• Connectivity: KNX-compatible interface for integration into building automation
• Detection coverage: designed for typical ceiling heights in offices and residential rooms (coverage varies by ceiling height and room layout)
• Adjustability: configurable sensitivity and detection settings for different use cases
• Power: supplied and powered via KNX bus (no separate mains feed required for logic functions)

How to use

Install the multisensor into a suitable ceiling cavity using the recommended recessed mounting procedure and ensure it is connected to the KNX bus by a qualified electrician. Configure detection parameters and KNX group addresses via ETS or the project’s KNX commissioning tools to match the intended control logic for lighting and HVAC. Place the sensor centrally in the monitored area or according to manufacturer guidelines to achieve optimal coverage; adjust sensitivity and presence detection settings during commissioning to minimize false triggers while ensuring reliable occupancy detection.

Recommendations

For accurate performance, position the detector away from direct air-conditioning outlets, heating sources and objects that may cause reflective movement. Use commissioning tools to tailor detection zones and time delays to the specific room use. Regularly verify KNX group addresses and update configuration if room layout changes to maintain efficient energy control.